Browser Record/Play Back - Pluggin or Addon

All,

I'm new to the forums, as I am in need of some assistance. I am looking for a browser pluggin or addon so that I can take a feed via USB/S-Video/Etc. into a browser window to show live streaming, then the user can decide to record the feed, store the feed on the HD for later playback in the same/or another browser window...!

Does anyone know if such a tool, addon or pluggin exists?

I've had a browse around and found a flash pluggin, which is a little small, the window size is only 100x100, which is pretty useless when the camera does 640x480...! HELP!